add rust kernel stub

This commit is contained in:
andromeda
2026-03-03 22:01:49 +01:00
parent d879df630f
commit 1b6f76488d
11 changed files with 635 additions and 3 deletions

2
.cargo/config.toml Normal file
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@@ -0,0 +1,2 @@
[build]
target = "x86_64-unknown-none"

359
Cargo.lock generated Normal file
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@@ -0,0 +1,359 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 4
[[package]]
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dependencies = [
"cpp_demangle",
"fallible-iterator",
"gimli",
"memmap2",
"object",
"rustc-demangle",
"smallvec",
"typed-arena",
]
[[package]]
name = "adler2"
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[[package]]
name = "bootle"
version = "0.1.0"
dependencies = [
"addr2line",
"cfg-if",
"dlmalloc",
"fortanix-sgx-abi",
"getopts",
"hashbrown",
"hermit-abi",
"object",
"r-efi",
"r-efi-alloc",
"rustc-demangle",
"rustc-literal-escaper",
"unwinding",
"wasi",
]
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dependencies = [
"cfg-if",
]
[[package]]
name = "crc32fast"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
"cfg-if",
]
[[package]]
name = "dlmalloc"
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"cfg-if",
"libc",
"windows-sys",
]
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name = "fallible-iterator"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
"crc32fast",
"miniz_oxide",
]
[[package]]
name = "foldhash"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
name = "fortanix-sgx-abi"
version = "0.6.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5efc85edd5b83e8394f4371dd0da6859dff63dd387dab8568fece6af4cde6f84"
[[package]]
name = "getopts"
version = "0.2.23"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cba6ae63eb948698e300f645f87c70f76630d505f23b8907cf1e193ee85048c1"
dependencies = [
"unicode-width",
]
[[package]]
name = "gimli"
version = "0.32.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e629b9b98ef3dd8afe6ca2bd0f89306cec16d43d907889945bc5d6687f2f13c7"
dependencies = [
"fallible-iterator",
"stable_deref_trait",
]
[[package]]
name = "hashbrown"
version = "0.15.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5971ac85611da7067dbfcabef3c70ebb5606018acd9e2a3903a0da507521e0d5"
dependencies = [
"allocator-api2",
"equivalent",
"foldhash",
]
[[package]]
name = "hermit-abi"
version = "0.5.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fc0fef456e4baa96da950455cd02c081ca953b141298e41db3fc7e36b1da849c"
[[package]]
name = "libc"
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source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6800badb6cb2082ffd7b6a67e6125bb39f18782f793520caee8cb8846be06112"
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name = "memchr"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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name = "memmap2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
"libc",
]
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name = "miniz_oxide"
version = "0.8.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
"adler2",
"simd-adler32",
]
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name = "object"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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"flate2",
"memchr",
"ruzstd",
]
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name = "r-efi"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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name = "r-efi-alloc"
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"r-efi",
]
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name = "rustc-demangle"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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name = "smallvec"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
name = "stable_deref_trait"
version = "1.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
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name = "twox-hash"
version = "2.1.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
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name = "typed-arena"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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name = "unicode-width"
version = "0.2.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
"gimli",
"libc",
]
[[package]]
name = "wasi"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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name = "windows-sys"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
"windows-targets",
]
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name = "windows-targets"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
dependencies = [
"windows_aarch64_gnullvm",
"windows_aarch64_msvc",
"windows_i686_gnu",
"windows_i686_gnullvm",
"windows_i686_msvc",
"windows_x86_64_gnu",
"windows_x86_64_gnullvm",
"windows_x86_64_msvc",
]
[[package]]
name = "windows_aarch64_gnullvm"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
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name = "windows_aarch64_msvc"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
[[package]]
name = "windows_i686_gnu"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
[[package]]
name = "windows_i686_gnullvm"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
[[package]]
name = "windows_i686_msvc"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
name = "windows_x86_64_gnu"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
[[package]]
name = "windows_x86_64_gnullvm"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
[[package]]
name = "windows_x86_64_msvc"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"

17
Cargo.toml Normal file
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@@ -0,0 +1,17 @@
[package]
name = "bootle"
version = "0.1.0"
edition = "2024"
[lib]
crate-type = ["staticlib"]
[dependencies]
[profile.release]
panic = "abort"
opt-level = 'z'
debug = false
[profile.dev]
panic = "abort"

View File

@@ -1,7 +1,15 @@
# bootle
hobby kernel written in rust. It's just for playing around... for now :p
run with `nix run git+https://git.mtgmonkey.net/andromeda/bootler#bootle`
# bootler # bootler
hobby bootloader written in asm. It's just for playing around... for now :p hobby bootloader written in asm. It's just for playing around... for now :p
run with `nix run git+https://git.mtgmonkey.net/andromeda/bootler#bootler`
### memory map ### memory map
``` ```

84
flake.lock generated
View File

@@ -1,5 +1,48 @@
{ {
"nodes": { "nodes": {
"fenix": {
"inputs": {
"nixpkgs": [
"naersk",
"nixpkgs"
],
"rust-analyzer-src": "rust-analyzer-src"
},
"locked": {
"lastModified": 1752475459,
"narHash": "sha256-z6QEu4ZFuHiqdOPbYss4/Q8B0BFhacR8ts6jO/F/aOU=",
"owner": "nix-community",
"repo": "fenix",
"rev": "bf0d6f70f4c9a9cf8845f992105652173f4b617f",
"type": "github"
},
"original": {
"owner": "nix-community",
"repo": "fenix",
"type": "github"
}
},
"naersk": {
"inputs": {
"fenix": "fenix",
"nixpkgs": [
"nixpkgs"
]
},
"locked": {
"lastModified": 1769799857,
"narHash": "sha256-88IFXZ7Sa1vxbz5pty0Io5qEaMQMMUPMonLa3Ls/ss4=",
"owner": "nix-community",
"repo": "naersk",
"rev": "9d4ed44d8b8cecdceb1d6fd76e74123d90ae6339",
"type": "github"
},
"original": {
"owner": "nix-community",
"repo": "naersk",
"type": "github"
}
},
"nixpkgs": { "nixpkgs": {
"locked": { "locked": {
"lastModified": 1772173633, "lastModified": 1772173633,
@@ -18,7 +61,46 @@
}, },
"root": { "root": {
"inputs": { "inputs": {
"nixpkgs": "nixpkgs" "naersk": "naersk",
"nixpkgs": "nixpkgs",
"rust-overlay": "rust-overlay"
}
},
"rust-analyzer-src": {
"flake": false,
"locked": {
"lastModified": 1752428706,
"narHash": "sha256-EJcdxw3aXfP8Ex1Nm3s0awyH9egQvB2Gu+QEnJn2Sfg=",
"owner": "rust-lang",
"repo": "rust-analyzer",
"rev": "591e3b7624be97e4443ea7b5542c191311aa141d",
"type": "github"
},
"original": {
"owner": "rust-lang",
"ref": "nightly",
"repo": "rust-analyzer",
"type": "github"
}
},
"rust-overlay": {
"inputs": {
"nixpkgs": [
"nixpkgs"
]
},
"locked": {
"lastModified": 1772507320,
"narHash": "sha256-GdGXniFvtIfRiakc+ncdQYnoQjKbTCv9Imjfl4ggquI=",
"owner": "oxalica",
"repo": "rust-overlay",
"rev": "1775eafa1879ac098ee436849bc9c3d963206f89",
"type": "github"
},
"original": {
"owner": "oxalica",
"repo": "rust-overlay",
"type": "github"
} }
} }
}, },

View File

@@ -1,16 +1,35 @@
{ {
inputs = { inputs = {
nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable"; nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
naersk = {
url = "github:nix-community/naersk";
inputs.nixpkgs.follows = "nixpkgs";
};
rust-overlay = {
url = "github:oxalica/rust-overlay";
inputs.nixpkgs.follows = "nixpkgs";
};
}; };
outputs = { outputs = {
nixpkgs, nixpkgs,
naersk,
rust-overlay,
self, self,
... ...
}: let }: let
system = "x86_64-linux"; system = "x86_64-linux";
pkgs = nixpkgs.legacyPackages.${system}; pkgs = import nixpkgs {
inherit system;
overlays = [(import rust-overlay)];
};
in { in {
packages.${system}.default = pkgs.callPackage ./nix/package.nix {}; packages.${system} = {
bootler = pkgs.callPackage ./nix/pkgs/bootler.nix {};
bootle = pkgs.callPackage ./nix/pkgs/bootle.nix {
naersk = naersk;
bootler = self.packages.${system}.bootler;
};
};
devShells.${system}.default = pkgs.mkShell { devShells.${system}.default = pkgs.mkShell {
inputsFrom = [self.packages.${system}.default]; inputsFrom = [self.packages.${system}.default];
}; };

63
nix/pkgs/bootle.nix Normal file
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@@ -0,0 +1,63 @@
{
callPackage,
rust-bin,
naersk,
bootler,
qemu,
...
}: let
rust-toolchain = rust-bin.fromRustupToolchainFile ../../rust-toolchain.toml;
naersk' = callPackage naersk {
cargo = rust-toolchain;
rustc = rust-toolchain;
clippy = rust-toolchain;
};
in (naersk'.buildPackage {
src = ../../.;
# deps for rust-src
additionalCargoLock = "${rust-toolchain.availableComponents.rust-src}/lib/rustlib/src/rust/library/Cargo.lock";
# just library build
copyBins = false;
release = true;
# build std
cargoBuildOptions = x: x ++ ["-Zbuild-std=core,compiler_builtins,alloc" "-Zbuild-std-features=compiler-builtins-mem"];
postInstall = ''
ld --oformat binary \
-o kernel.bin \
-T src/linker.ld \
-e _start \
target/x86_64-unknown-none/release/libbootle.a
dd if=/dev/zero of=disk bs=512 count=2
dd if=${bootler}/bin/boot.bin of=disk conv=notrunc
dd if=kernel.bin of=disk bs=512 seek=1 conv=notrunc
mkdir -p $out/lib
mkdir -p $out/bin
cat<<EOF>$out/bin/bootle
#!/usr/bin/env bash
mkdir -p ./.bootle
cp $(echo $out)/bin/disk ./.bootle/disk
chmod a+w ./.bootle/disk
${qemu}/bin/qemu-system-x86_64 \
-nographic \
-drive file=./.bootle/disk,format=raw,index=0,media=disk
rm ./.bootle -r
EOF
chmod +x $out/bin/bootle
cp target/x86_64-unknown-none/release/libbootle.a $out/lib
cp kernel.bin $out/bin
cp disk $out/bin
'';
})

49
nix/pkgs/bootler.nix Normal file
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@@ -0,0 +1,49 @@
{
stdenv,
nasm,
qemu,
...
}: let
bootImg = "boot";
in
stdenv.mkDerivation {
pname = "bootler";
version = "0.1.0";
src = ../../.;
buildPhase = ''
${nasm}/bin/nasm asm/boot.asm -o boot.bin
${nasm}/bin/nasm asm/kernel.asm -o dummy.bin
dd if=/dev/zero of=${bootImg} bs=512 count=2
dd if=boot.bin of=${bootImg} conv=notrunc
dd if=dummy.bin of=${bootImg} bs=512 seek=1 conv=notrunc
'';
installPhase = ''
mkdir -p $out/bin
cp boot.bin $out/bin
cp dummy.bin $out/bin
cp ${bootImg} $out/bin
# create emulation binary
cat<<EOF>$out/bin/bootler
#!/usr/bin/env bash
# create temp dir
mkdir -p ./.bootler
cp $(echo $out)/bin/${bootImg} ./.bootler/${bootImg}
chmod a+w ./.bootler/${bootImg}
# run image
${qemu}/bin/qemu-system-x86_64 \
-nographic \
-drive file=./.bootler/${bootImg},format=raw,index=0,media=disk
# clean up
rm ./.bootler -r
EOF
chmod +x $out/bin/${bootImg}
chmod +x $out/bin/bootler
'';
}

5
rust-toolchain.toml Normal file
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@@ -0,0 +1,5 @@
[toolchain]
channel = "nightly"
components = ["rust-src"]
targets = ["x86_64-unknown-none"]
profile = "default"

20
src/lib.rs Normal file
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@@ -0,0 +1,20 @@
#![no_std]
#![no_main]
use core::panic::PanicInfo;
#[unsafe(no_mangle)]
pub extern "C" fn _start() -> ! {
// 'k'
loop{unsafe {core::arch::asm!(
"out dx, al", in("al") 0x6Bu8
)}}
}
#[panic_handler]
fn panic(_: &PanicInfo) -> ! {
// 'p'
loop{unsafe {core::arch::asm!(
"out dx, al", in("al") 0x70u8
)}}
}

8
src/linker.ld Normal file
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@@ -0,0 +1,8 @@
SECTIONS
{
. = 0x00010000;
.text : {
*(.text._start)
*(.text*)
}
}